Tonga earthquakes

M4.6 earthquake 104 km ESE of Pangai, Tonga

A magnitude 4.6 earthquake struck 104 km ESE of Pangai, Tonga on Sun, Jul 16, 2006, 6:42 AM GMT+13 (17:42 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.8 146 km SE of Pangai, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2006-07-15 17:42:13 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
20.220° S, 173.448° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000enpb. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
FROM_LOCATION
Station coverage gap
83°
Stations used
14

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 and up: 4 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.8146 km SE of Pangai, Tonga · 7376 days ago · 35 km deep · 53 km away
  2. 4.7115 km SSE of Pangai, Tonga · 7365 days ago · 10 km deep · 78 km away
  3. 4.834 km SSE of Pangai, Tonga · 7346 days ago · 13 km deep · 88 km away
  4. 4.660 km ENE of Pangai, Tonga · 7340 days ago · 92 km deep · 72 km away

Before

  1. 4.751 km E of Pangai, Tonga · 7388 days ago · 19 km deep · 70 km away
  2. 4.2113 km SSE of Pangai, Tonga · 7388 days ago · 35 km deep · 87 km away
  3. 5.6Tonga · 7397 days ago · 26 km deep · 80 km away
  4. 4.665 km E of Pangai, Tonga · 7397 days ago · 10 km deep · 53 km away
  5. 4.696 km SSE of Pangai, Tonga · 7398 days ago · 35 km deep · 71 km away
  6. 5.0100 km SSE of Pangai, Tonga · 7404 days ago · 15 km deep · 76 km away
  7. 4.222 km SSE of Pangai, Tonga · 7405 days ago · 36 km deep · 87 km away
  8. 4.338 km S of Pangai, Tonga · 7407 days ago · 35 km deep · 90 km away
  9. 4.834 km E of Pangai, Tonga · 7413 days ago · 10 km deep · 72 km away
  10. 4.939 km SSE of Pangai, Tonga · 7413 days ago · 35 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000enpb. Read Mon, Oct 5, 2026, 2:01 AM UTC.